Isixazululo se-Sodium Bicarbonate: Indlela eya ku-Sodium Hydrosulfide
I-Anhydrous i-sodium hydrosulfide
Kulungiselelwe njengoba kuchaziwe ngenhla ngaphansi kwezimo eziqinile ezingenawo umswakama.
Isixazululo se-NaHS samanzi
I-sodium sulfide nonahydrate (Na₂S·9H₂O) incibilikiswa emanzini asanda kuhluzwa ukuze kwenziwe i- Isixazululo se-Na₂S esingu-13% (w/v).
Ngaphansi kokuxubha nangaphansi 20°C, 14 g NaHCO₃ kungeziwe ku- 100 ml yalesi sixazululo, okubangela ukuncibilika okusheshayo kanye nokusabela kwe-exothermic.
I-methanol eyi-100 mL iyangezwa (igcina izinga lokushisa lingaphansi kwama-20°C), okwenza amakristalu e-Na₂CO₃ abe mancane.
Ngemva kwemizuzu eyi-10, ingxube iyahlungwa, bese okusele kugezwa nge-50 mL methanol.
I-filtrate iqukethe i-≥9 g NaHS kanye ne-≤0.6 g Na₂CO₃ (~3.5 g NaHS kanye ne-0.2 g Na₂CO₃ nge-100 mL).